Apache CPU Core Usage

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Hello all,

OS: CentOS 4.4 x86_64
CPU: Dual Intel Xeon E5335 (quad-core)
Kernel: 2.6.20

I've been watching "top" after compiling Apache and in both the worker and prefork MPM, I've noticed that Apache likes to use the same CPU core a lot more than using all of the cores. Right now, top reports all of the prefork children as mostly using core 2 with a few using other cores. The worker MPM was the same way, tho I can't check how the threads were working.

Is there any reason for this, or should I even trust what "top" is saying? Is there any way to get it to start using the other cores (I bought these CPU's to utilize the cores, not give them all vacation time, heh).

Thanks!

--Graham Frank


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